Replaceable Parts - HP 400E Operating And Service Manual

Section VIII
If any of the parts listed in Change
Table
6-1
CHANGE NO.3
CHANGE NO.4
DDDD
0490-0195
CHANGE NO.5
CHANGE NO.6
CHANGE NO. 7
CHANGE NO. 8
CHANGE NO. 9
8-2
and Schematic Figure
Change A2R44 to R·: fxd met flm 150 ohms
0757-028 4.
Change A2R16 to R: fxd comp 8 2 kilohms
0683-8235.
Delete A2R72, A2R73, A2R74, A2CR20, A2CR21, A2C44.
Change A2Q3 to TSTR: Si PNP 2N3638; -hp- Part Number 1853-0016.
Change A2Q4 to TSTR: Ge PNP 2N118 3; -hp- Part Number 18 50-0064.
Change A2R67 to R: fxd comp 390 ohms
and delete A2CR22.
Section VI Replaceable Parts and Figure 7-1 Schematic Diagram
Delete: A2R67 and A2CR22.
Change A2C12 to C: fxd 110 pF
Section VI Replaceable Parts
00400 - 66502 printed circuit board has different location for relay connections:
AIK I and AIK2. Check configuration of relay connections and order part
numbers shown according to location of relay terminals.
0490-0478
RELAY BOTTOM VIEWS
Table 6-1 Replaceable Parts and Figure 7-1 Schematic:
Change A2Q5 to -hp- Part Number 1855-0068 and A2R16 to 8 2 kilohms
5%, -hp- Part Number 068 3-8 325. If A2Q5 should be defective, replace both
A2Q5 and A2R16 with latest part numbers to reduce noise.
Table 6-1 Replaceable Parts and Figure 7-1 Schematic
Change A2R73, R74 to 4.7 kilohms, -hp- Part Number 0683-4725. Replace
with latest part numbers to reduce noise produced by A2C R20 and CR21.
Table 6-1 Replaceable Parts and Figure 7-1 Schematic.
Delete: A2R75.
Table 6-1 Replaceable Parts and Figure 7-1 Schematic.
Delete:A2C45.
Table 6-1 Replaceable Parts.
Change 15 connector power cord to -hp- Part Number 1251-0148 .
Change Panel rear to 00400 - 00202.
Change Cord Assy power to 8120-0078 .
NOTE
are changed to values shown in
2
app parts should be changed.
7-1,
±
5%; -hp- Part Number 0683-3915
±
5%; -hp- Part Number 0140-0194.
0490-0343
0490-0196
Models 400E/400EL
±
1070; -hp- Part Number
±
5%; -hp- Part Number
±